I have no idea how this happened but for some reason some animals randomly throws out 2 or 3 grenades when they die.
Strangest thing about it is that AFAIK none of the mods I run does anything like this.

Load Order:
[X] FalloutNV.esm
[X] DeadMoney.esm
[X] HonestHearts.esm
[X] Ambient Temperature.esm
[X] AWorldOfPain(Preview).esm
[X] Primary Needs HUD.esm
[X] WARZONES - Misanthropy Pure.esm
[X] Project Nevada - Core.esm
[X] Project Nevada - Equipment.esm
[X] Tales from the Burning Sands.esm
[X] ELECTRO-CITY - CompletedWorkorders.esm
[X] ELECTRO-CITY - Highways and Byways.esm
[X] iHUD.esm
[X] Caliber.esm
[X] IWS-Core.esm
[X] Readius_NV.esp
[X] The Mod Configuration Menu.esp
[X] NV Interiors - El Ray Motel.esp
[X] NV Interiors - West Vegas Fringe.esp
[X] Project Nevada - Cyberware.esp
[X] Project Nevada - Dead Money.esp
[X] Project Nevada - Honest Hearts.esp
[X] Existence2.0.esp
[X] CONELRAD 640-1240.esp
[X] SecretStash80.esp
[X] Dog_City3.esp
[X] NewVegasBounties.esp
[X] NoFastTravel_NV.esp
[X] PortableCampsite.esp
[X] Dire Contraptions.esp
[X] Better Binoculars High.esp
[X] LeatherBackpack - eng.esp
[X] Tailor Maid - NV.esp
[X] More Realistic Aiming.esp
[X] Project Nevada - Rebalance.esp
[X] Trackable Blood and Footprints.esp
[X] DYNAVISION 2 - Dynamic Lens Effect.esp
[X] WeaponModsixpanded.esp
[X] WMX-HonestHearts.esp
[X] WMX-DeadMoney.esp
[X] Project Nevada - WMX.esp
[X] WMX-ArenovalisTextures.esp
[X] EVE FNV.esp
[X] FNVEnhancedShaders - AA-DOF Enable.esp
[X] Fellout.esp
[X] friendofnightforfellout.esp
[X] Nevada Skies - URWLHH.esp
[X] Interior Lighting Overhaul-Realistic Interiors-Full.esp
[X] ILO-RI-Dead Money.esp
[X] ILO-RI-Honest Hearts.esp
[X] ILO-RI-PipBoy Light.esp
[X] SunValley.esp
[X] Poked - Survival 1.02.esp.esp
[X] DriveableMotorCycle.esp
[X] DarNifiedUINV.esp
[X] IWS-Core-Civilians.esp
[X] IWS-Core-Guards.esp
[X] IWS-Core-Patrols.esp
[X] IWS-AS-MedSpawns.esp
[X] LFox Bottle That Water.esp